Waterproof performance testing device for automobile wire harness connector

The utility model aims to provide a waterproof performance testing device for an automobile wire harness connector. The waterproof performance testing device comprises a workbench, a water tank, a side plate, a support, a connector connecting mechanism, an air pressure adjusting mechanism and an air pipe. The water tank is installed in the middle of the workbench, and the side plate is installed on the workbench in the vertical direction and located on the rear side of the water tank. The support is installed on a bottom plate in the water tank, and the connector connecting mechanism is installed on the support. The connector assembly connecting mechanism comprises a shell and a connector assembly slot, the top surface of the shell is provided with the connector assembly slot, the connector assembly slot is in an inverted trapezoidal table shape, and a plurality of steps are arranged in the connector assembly slot; an air inlet is formed in the center of the bottom surface of the connector slot; one end of th